This report analyzed Alipay’s Ant Forest’s exponential growth, its trajectory, and vision to unlock the power of individual behavior change for climate change mitigation. It explained how this green initiative, through digital functions, managed to encourage users to engage in low-carbon activities in their daily life. It estimated that the market size for an innovation such as Alipay Ant Forest was roughly three times the current population of the United States, noting that up to 8.6% of emissions tied to public transportation could be avoided across seven high-emission countries if similar green initiatives were to be implemented over the 2020-2030 period. This project was carried out with the support of the Sustainable Digital Finance Alliance and UNEP Inquiry.